Simplex Trading Portfolio holdings
Simplex Trading, founded in 2004 and headquartered in Chicago, Illinois, is a technology-driven proprietary trading firm specializing in market-making and liquidity provision, primarily in U.S. equity options and futures options. Leveraging advanced proprietary software and data-driven analysis, the firm optimizes trading strategies and develops innovative solutions to capitalize on financial market opportunities, maintaining a competitive edge through automation and a collaborative team of technologists and traders. With a workforce exceeding 300 and led by CEO Erik Swanson since 2014, Simplex operates with a low-ego, high-intelligence culture, focusing on minimal bureaucracy and rapid execution, while also making strategic venture capital investments in fintech startups. Recognized as a top workplace in Chicago by Built In’s 2025 awards, Simplex continues to evolve, blending cutting-edge technology with a commitment to market efficiency and growth.
Top Buys
| Rank | Stock | Value |
|---|---|---|
| 1 |
Apple
AAPL
|
+$286M |
| 2 |
Vanguard S&P 500 ETF
VOO
|
+$82.3M |
| 3 |
Alphabet (Google) Class A
GOOGL
|
+$72.6M |
| 4 |
Alphabet (Google) Class C
GOOG
|
+$64.2M |
| 5 |
Intel
INTC
|
+$52.9M |
Top Sells
| Rank | Stock | Value |
|---|---|---|
| 1 |
State Street SPDR S&P 500 ETF Trust
SPY
|
+$51.5M |
| 2 |
iShares Silver Trust
SLV
|
+$41.8M |
| 3 |
Ford
F
|
+$26.3M |
| 4 |
United Airlines
UAL
|
+$22.7M |
| 5 |
ExxonMobil
XOM
|
+$22.3M |
Sector Composition
| Rank | Sector | Weight |
|---|---|---|
| 1 | Technology | 0.84% |
| 2 | Communication Services | 0.32% |
| 3 | Consumer Discretionary | 0.32% |
| 4 | Financials | 0.28% |
| 5 | Healthcare | 0.2% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Change in Stake | Capital Flow | |
|---|---|---|---|---|---|---|
|
TGR
5426
CALL
DELISTED
ISHARES TARGET DATE RETIREMENT INCOME ETF
TGR
| $112K | ﹤0.01% |
7,100
-13,600
| -66% | -$215K |
|
|
AKYA
5427
CALL
DELISTED
Akoya BioSciences
AKYA
| $111K | ﹤0.01% |
8,700
+7,500
| +625% | +$77.7K |
|
5428
CALL
CPS Technologies
CPSH
$75.5M
| $111K | ﹤0.01% |
36,200
+9,300
| +35% | +$34.5K |
|
5429
iShares MSCI Australia ETF
EWA
$1.39B
| $111K | ﹤0.01% |
5,264
-68,200
| -93% | -$1.65M |
|
|
GBIO
5430
CALL
DELISTED
Generation Bio
GBIO
| $111K | ﹤0.01% |
1,700
+1,660
| +4,150% | +$109K |
|
5431
iPath Series B Carbon Exchange-Traded Notes
GRN
$23.6M
| $111K | ﹤0.01% |
3,179
+971
| +44% | +$31.8K |
|
5432
Lightwave Logic
LWLG
$995M
| $111K | ﹤0.01% |
+17,084
| New | +$148K |
|
5433
CALL
Pediatrix Medical
MD
$2.18B
| $111K | ﹤0.01% |
5,300
+5,200
| +5,200% | +$106K |
|
5434
Noble Corp
NE
$6.77B
| $111K | ﹤0.01% |
4,395
+2,097
| +91% | +$69K |
|
5435
CALL
Nomad Foods
NOMD
$1.66B
| $111K | ﹤0.01% |
5,600
+3,600
| +180% | +$72.8K |
|
5436
CALL
Northwest Bancshares
NWBI
$2.3B
| $111K | ﹤0.01% |
8,700
+6,600
| +314% | +$84.1K |
|
|
RDUS
5437
PUT
DELISTED
Radius Recycling
RDUS
| $111K | ﹤0.01% |
3,400
+400
| +13% | +$17.1K |
|
5438
PUT
Scholar Rock
SRRK
$5.67B
| $111K | ﹤0.01% |
20,300
+15,600
| +332% | +$112K |
|
5439
CALL
SurgePays
SURG
$5.48M
| $111K | ﹤0.01% |
+23,000
| New | +$97K |
|
|
TPH
5440
CALL
DELISTED
Tri Pointe Homes
TPH
| $111K | ﹤0.01% |
6,600
-10,800
| -62% | -$212K |
|
|
CERE
5441
CALL
DELISTED
Cerevel Therapeutics Holdings, Inc. Common Stock
CERE
| $111K | ﹤0.01% |
4,200
+1,500
| +56% | +$42.6K |
|
|
SCU
5442
DELISTED
Sculptor Capital Management, Inc. Class A Common Stock
SCU
| $111K | ﹤0.01% |
13,298
+6,935
| +109% | +$76.4K |
|
5443
PUT
Amkor Technology
AMKR
$12.4B
| $110K | ﹤0.01% |
6,500
+2,000
| +44% | +$38K |
|
5444
CALL
Dine Brands
DIN
$456M
| $110K | ﹤0.01% |
1,700
-5,100
| -75% | -$364K |
|
5445
Dolphin Entertainment
DLPN
$13.3M
| $110K | ﹤0.01% |
17,418
+17,096
| +5,309% | +$129K |
|
5446
PUT
Deluxe
DLX
$1.18B
| $110K | ﹤0.01% |
5,100
+3,200
| +168% | +$81.5K |
|
5447
CALL
US Global Investors
GROW
$35.5M
| $110K | ﹤0.01% |
25,300
-48,600
| -66% | -$236K |
|
5448
Vanguard S&P Mid-Cap 400 Growth ETF
IVOG
$1.62B
| $110K | ﹤0.01% |
1,400
+1,200
| +600% | +$105K |
|
5449
CALL
CS Disco
LAW
$250M
| $110K | ﹤0.01% |
6,100
-35,500
| -85% | -$915K |
|
5450
PUT
Leggett & Platt
LEG
$1.34B
| $110K | ﹤0.01% |
3,200
-8,200
| -72% | -$300K |
|
Similar funds
Simplex Trading's Q2 2022 Portfolio in Review
As of Q2 2022, Simplex Trading held 11,810 positions worth $94.1B, down 14% from $109B the previous quarter. Its ten largest holdings account for 40% of the portfolio.
Simplex Trading deployed $11.3B of net new capital in Q2 2022, opening 1,405 new positions and adding to 4,027 existing holdings. Its largest new stake was Alphabet (Google) Class C: 543,540 shares worth $59.4M.
By sector, the portfolio is most concentrated in Technology at 0.84% of assets, up from 0.67% a quarter earlier, followed by Communication Services and Consumer Discretionary.
On the sell side, the largest reduction was United Airlines, an estimated $22.7M trimmed.
- Simplex Trading's largest Q2 2022 buy was Alphabet (Google) Class C: 543,540 shares worth $59.4M.
- Simplex Trading added most to Apple in Q2 2022, an estimated $286M increase.
- Simplex Trading's biggest Q2 2022 reduction was United Airlines, cutting an estimated $22.7M.
- Simplex Trading fully exited State Street SPDR S&P 500 ETF Trust in Q2 2022, selling an estimated $51.5M.
- Simplex Trading's ten largest holdings make up 40% of its $94.1B portfolio in Q2 2022.
- Simplex Trading opened 1,405 new positions and closed 1,792 in Q2 2022.
- Simplex Trading's portfolio value fell 14% quarter-over-quarter to $94.1B.
Based on Simplex Trading's 13F filing for Q2 2022, filed 3 Aug 2022.